Raypak P-R185B To P-R405B, C-R185B To P-R405B, P-R185BL To P-R405BL, C-R185BL To C-R405BL, RP2100 User Manual

Part No. 240612
CATALOG NO. 6000.52-AH
Effective: 11-01-03
Replaces: 09-01-03
INSTALLATION
AND OPERATING
INSTRUCTIONS
Models
P-R185B to P-R405B
C-R185B to P-R405B
Low NOx
P-R185BL to P-R405BL
C-R185BL to C-R405BL
RP2100
SWIMMING POOL
and
SPA HEATER
This manual should be maintained in legible condition and kept adjacent to the
heater or kept in a safe place for future reference.
WARNING: If the information in these instructions are not followed exactly, a fire or
explosion may result causing property damage, personal injury or death.
— WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance.
• Do not touch any electrical switch; do not use any phone in your building.
• Immediately call your gas supplier from a neighbor's phone. Follow the gas
supplier's instructions.
• If you cannot reach your gas supplier, call the fire department.
— Installation and service must be performed by a qualified installer, service agency or
the gas supplier.
— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any other appliance.
Fig.# 9478

Raypak P-R185B To P-R405B, C-R185B To P-R405B, P-R185BL To P-R405BL, C-R185BL To C-R405BL, RP2100 Specifications

General

Category	Swimming Pool Heater
Fuel Type	Natural Gas or Propane
Thermal Efficiency	82%
Maximum Working Pressure	50 PSI
Models	RP2100
Ignition Type	Electronic
Heat Exchanger Material	Cupro-Nickel
Water Flow Rate	40 - 120 GPM
Electrical Requirements	120V, 60Hz
Warranty	1 year on parts

Summary

Lighting and Shut-Off Procedures

Millivolt Pilot Lighting

Detailed steps for lighting the pilot manually on millivolt systems, including safety precautions.

Electronic Ignition Operation

Automatic Pilot Operation and Shut-Off

Instructions for operating and shutting down heaters with electronic ignition systems.

Post-Startup and Safety Precautions

General Safety Cautions

Important safety guidelines for pool and spa water temperatures and user health considerations.

Operation in Varied Conditions

Troubleshooting Starting Issues

Basic tips for when the heater will not fire, covering electrical, pump, and filter issues.

Seasonal Operation and Storage

Winterizing the Pool & Spa Heater

Step-by-step procedure for shutting down and winterizing outdoor heaters in freezing climates.

Installation Requirements and Codes

Installation Notices and Codes

Important notices, code requirements, and safety warnings related to installation and operation.

Base and Clearance Guidelines

Guidelines for proper base installation and minimum clearances from combustible construction.

Outdoor Heater Installation

Outdoor Placement and Venting

Specific guidelines and warnings for locating heaters outdoors, including proximity to sprinklers and vent terminal installation.

Indoor and Stacked Installations

Indoor Heater Setup and Venting

Guidelines for indoor installation, including venting requirements and proximity to chimneys.

Venting and Gas Supply Installation

Vent Piping Installation Guidelines

Guidelines for vent piping installation, including vertical height, clearances, and pipe support.

Gas Supply Connection Procedure

Gas System Configuration

Gas Pressure Regulator Adjustment

Procedure for adjusting the gas pressure regulator and checking pressures at the gas valve.

Bypass and Pressure Relief Systems

Bypass Valve Systems

Pressure Relief Valve Installation

Guidelines for installing a pressure relief valve, including capacity and setting requirements.

Heat Exchanger Service

Heat Exchanger Reversal Procedure

Electrical Wiring and Connections

Millivolt System Wiring

Electronic Ignition IID System Wiring

Transformer Wiring

120V Wiring Configurations

240V Wiring Configurations

Millivolt Wiring Diagram

Mechanical Thermostat Wiring

IID Unit Wiring Diagrams

Atmospheric IID Unit Wiring

Low NOx IID Unit Wiring

Low NOx IID Unit Wiring Diagram

Servicing and Controls

Control Locations and Millivolt Adjustments

Diagnostics and Fault Codes

Diagnostic Readouts and Status Codes

Information on onboard diagnostic controls, status codes, and fault code definitions.

Reading and Interpreting Faults

Guidance on how to read and interpret fault codes displayed by the heater.

Remote Control Operation

Remote Control Setup and Usage

Remote Control Wiring

Two-Wire Remote Control Wiring

Three-Wire Remote Control Wiring

Safety Switches and High Limits

Pressure Switch and Roll-Out Safety

Explanation of the pressure switch function, adjustment, and the flame roll-out safety switch.

High Limit Switch Operation

Component Removal Procedures

Burner, Gas Valve, and Pilot Removal

Heat Exchanger Removal Steps

Maintenance and Component Replacement

Tube Cleaning and Desooting

Immersion Well and Governor Replacement

Low NOx Heater Specifics

Low NOx Burner and Visual Inspection

Low NOx Safety and Startup

Low NOx Component Service

Low NOx Burner Tray and Pilot Removal

Troubleshooting Guide

Mechanical Troubleshooting

A guide to diagnosing and solving mechanical problems with the heater, including common issues and solutions.

Millivolt Electrical Troubleshooting

Standing Pilot Millivolt Checks

Electrical checks and troubleshooting steps for standing pilot millivolt systems.

Electronic Ignition Troubleshooting

IID System Troubleshooting Flowchart

A flowchart to guide technicians through troubleshooting electronic ignition (IID) systems.

Digital Control Logic Flowchart

Control Logic Diagnosis

A flowchart illustrating the logic of the digital control system for diagnosing operation and faults.